yeah i know. The pure puts out 3.7 watts and the bantam gold specs state 2x25w per channel RMS. it comes with a 15v 3 amp cord and runs at 90% efficiency. I'm not sure if i need to check the total output with another measuring device? Anyway its putting out a great sound, will keep me cooler on hot days, reducing my carbon footprint, saving me money in the long run and i'm enjoying the music which is what its all about in the end. Now I just have to keep my daughter from putting her ipod in it. Even the Pure can't improve the sound of low quality mp3 recorded pop songs.